The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 15, 2015
Filed:
Jul. 05, 2011
Marie-hélène Klopffer, Montigny-le-Bretonneux, FR;
Xavier Lefebvre, Conflans-Sainte-Honorine, FR;
Yann Nicolas, Grenoble, FR;
Patrice Jung, La Mailleraye sur Seine, FR;
Marie-Hélène Klopffer, Montigny-le-Bretonneux, FR;
Xavier Lefebvre, Conflans-Sainte-Honorine, FR;
Yann Nicolas, Grenoble, FR;
Patrice Jung, La Mailleraye sur Seine, FR;
Technip FRANCE, , FR;
IFP ENERGIES NOUVELLES, , FR;
Abstract
Method for testing a pipe for carrying hydrocarbons. The pipe has at least one internal sealing sheath made of polymer material, incorporating elements of reactive compound capable of reacting with corrosive gases contained in the hydrocarbons which diffuse radially through the sheath. The reaction forms a first layer, extending radially from the internal surface, in which the elements of reactive compound have reacted with the gases. A second layer, extends between the first layer and the external surface, in which the elements of reactive compound have not yet reacted with the gases. The method uses ultrasound to determine the position of an interface between the first and second layers to measure the progression of the diffusion of the gases through the sheath.